Fix chromium-os:10777 and other sync related crashes.

chrome/browser/dom_ui/dom_ui.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_DOM_UI_DOM_UI_H_
 #define CHROME_BROWSER_DOM_UI_DOM_UI_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 112 matching lines @@
                               const Value& arg3,
                               const Value& arg4);
   void CallJavascriptFunction(const std::wstring& function_name,
                               const std::vector<const Value*>& args);
 
   ThemeProvider* GetThemeProvider() const;
 
   // May be overridden by DOMUI's which do not have a tab contents.
   virtual Profile* GetProfile() const;
 
+  // Convenience function for UI that requires access to the original profile.

[akalin, 2011/01/13 04:38:42]

I think there's no need for this -- GetProfileSyncService() already drills down
to the original profile IIRC

[stevenjb, 2011/01/13 18:00:49]

OK, I wasn't sure if this mattered. Definitely better if it does not - we drill
down to GetOriginalProfile() in about 4 places right now, and not in the other
couple of dozen. I will remove this and if we encounter any problems we can fix
GetProfileSyncService() instead.

+  Profile* GetOriginalProfile() const;
+
   // May be overridden by DOMUI's which do not have a tab contents.
   virtual RenderViewHost* GetRenderViewHost() const;
 
   TabContents* tab_contents() const { return tab_contents_; }
 
  protected:
   void AddMessageHandler(DOMMessageHandler* handler);
 
   // Options that may be overridden by individual DOM UI implementations. The
   // bool options default to false. See the public getters for more information.
@@ skipping 52 matching lines @@
   // Extract a string value from a list Value.
   std::wstring ExtractStringValue(const ListValue* value);
 
   DOMUI* dom_ui_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DOMMessageHandler);
 };
 
 #endif  // CHROME_BROWSER_DOM_UI_DOM_UI_H_